Three months ended September 30,

Nine months ended September 30,

2021

2020

2021

2020

(in thousands, except per share amounts)

Net income (loss)

$

8,993

$

580

$

17,835

$

(8,290)

Net income (loss) per common share:

Basic

$

0.18

$

0.01

$

0.36

$

(0.17)

Diluted

$

0.17

$

0.01

$

0.33

$

(0.17)

Basic weighted average shares outstanding

49,021

48,341

48,968

48,327

Dilutive effect of share-based awards

1,507

833

1,377

Dilutive effect of the 2027 Notes

3,321

—

3,261

—

Diluted weighted average shares outstanding

53,849

49,174

53,606

48,327

Common share equivalents excluded from the diluted weighted average shares outstanding since the Company incurred a net loss and their effect would be antidilutive

N/A

650

Potentially dilutive shares excluded from the diluted calculation as their effect would be antidilutive

451

984

447

1,029

Maximum potential shares to be issued for settlement of the 2023, 2025, and 2027 Notes excluded from the diluted calculation as their effect would be antidilutive due to a net loss or the fact that the conversion value of the Notes did not exceed their principal amount

8,811

15,354

8,811

15,354